IN152852B - - Google Patents

Info

Publication number
IN152852B
IN152852B IN548/DEL/79A IN548DE1979A IN152852B IN 152852 B IN152852 B IN 152852B IN 548DE1979 A IN548DE1979 A IN 548DE1979A IN 152852 B IN152852 B IN 152852B
Authority
IN
India
Application number
IN548/DEL/79A
Other languages
English (en)
Inventor
Roger Graham Fordham
Original Assignee
Gen Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gen Electric Co Ltd filed Critical Gen Electric Co Ltd
Publication of IN152852B publication Critical patent/IN152852B/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16528Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00Details of emergency protective circuit arrangements
    • H02H1/0007Details of emergency protective circuit arrangements concerning the detecting means
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/093Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current with timing means
    • H02H3/0935Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current with timing means the timing being determined by numerical means
IN548/DEL/79A 1978-08-09 1979-07-31 IN152852B (US07261876-20070828-C00017.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7832685 1978-08-09

Publications (1)

Publication Number Publication Date
IN152852B true IN152852B (US07261876-20070828-C00017.png) 1984-04-21

Family

ID=10498940

Family Applications (1)

Application Number Title Priority Date Filing Date
IN548/DEL/79A IN152852B (US07261876-20070828-C00017.png) 1978-08-09 1979-07-31

Country Status (9)

Country Link
US (1) US4321647A (US07261876-20070828-C00017.png)
JP (1) JPS5526100A (US07261876-20070828-C00017.png)
AU (1) AU4967479A (US07261876-20070828-C00017.png)
BR (1) BR7905101A (US07261876-20070828-C00017.png)
CH (1) CH619564A5 (US07261876-20070828-C00017.png)
DE (1) DE2932117A1 (US07261876-20070828-C00017.png)
FR (1) FR2433253A1 (US07261876-20070828-C00017.png)
IN (1) IN152852B (US07261876-20070828-C00017.png)
SE (1) SE7906656L (US07261876-20070828-C00017.png)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162921A (en) * 1980-05-20 1981-12-15 Tokyo Shibaura Electric Co Protection relay unit
DE3446958A1 (de) * 1984-12-21 1986-07-10 Siemens AG, 1000 Berlin und 8000 München Anordnung zur kurzschluss- bzw. ueberlastueberwachung bei elektronischen naeherungsschaltern
TW319763B (US07261876-20070828-C00017.png) * 1995-02-01 1997-11-11 Epix Medical Inc

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1531405A (fr) * 1967-02-20 1968-07-05 Electricite De France Détecteur de surintensité à ferrites multitrous
US3599045A (en) * 1969-10-03 1971-08-10 Ite Imperial Corp Discriminating fault indication circuit
US3656026A (en) * 1971-03-12 1972-04-11 Ite Imperial Corp Solid state overcurrent device with variable frequency reference
US3914667A (en) * 1972-03-27 1975-10-21 Ite Imperial Corp Rate of rise tripping device
CH559449A5 (US07261876-20070828-C00017.png) * 1973-05-30 1975-02-28 Bbc Brown Boveri & Cie
US3885199A (en) * 1973-07-02 1975-05-20 Hitachi Ltd Protective relaying device
US3922587A (en) * 1974-10-25 1975-11-25 Rca Corp Digital feedback relay controller
US4017766A (en) * 1975-08-04 1977-04-12 Westinghouse Electric Corporation Inverse time-overcurrent relay using successive linear approximations
DE2609654B2 (de) * 1976-03-09 1978-01-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Digitaler ueberstromausloeser
DE2614344A1 (de) * 1976-04-01 1977-10-06 Licentia Gmbh Anordnung zur ueberwachung und selbsttaetigen steuerung einer im ueberlastbereich arbeitenden elektrischen einrichtung
DE2735807C2 (de) * 1977-08-09 1983-12-22 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Überwachungseinrichtung für eine Geschirrspül- oder Waschmaschine mit einem elektronischen Steuergerät
US4231029A (en) * 1978-02-28 1980-10-28 Westinghouse Electric Corp. Automatic transfer control device and frequency monitor
ES468764A1 (es) * 1978-04-13 1979-10-01 Arteche Instr Sistemas Ÿnueva proteccion electrica con tiempo de retardo dependien-te de una magnitud reguladaŸ

Also Published As

Publication number Publication date
FR2433253B1 (US07261876-20070828-C00017.png) 1982-08-27
BR7905101A (pt) 1980-05-06
CH619564A5 (US07261876-20070828-C00017.png) 1980-09-30
US4321647A (en) 1982-03-23
DE2932117A1 (de) 1980-02-21
AU4967479A (en) 1980-03-06
JPS5526100A (en) 1980-02-25
SE7906656L (sv) 1980-02-10
FR2433253A1 (fr) 1980-03-07

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